Add AccountUtil Unit Tests (#4814)

app/src/test/kotlin/fr/free/nrw/commons/auth/AccountUtilUnitTest.kt

@@ -0,0 +1,61 @@
+package fr.free.nrw.commons.auth
+
+import fr.free.nrw.commons.FakeContextWrapper
+import fr.free.nrw.commons.FakeContextWrapperWithException
+import fr.free.nrw.commons.TestCommonsApplication
+import org.junit.Assert
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.RuntimeEnvironment
+import org.robolectric.annotation.Config
+
+@RunWith(RobolectricTestRunner::class)
+@Config(sdk = [21], application = TestCommonsApplication::class)
+class AccountUtilUnitTest {
+
+    private lateinit var context: FakeContextWrapper
+    private lateinit var accountUtil: AccountUtil
+
+    @Before
+    @Throws(Exception::class)
+    fun setUp() {
+        context = FakeContextWrapper(RuntimeEnvironment.application.applicationContext)
+        accountUtil = AccountUtil()
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun checkNotNull() {
+        Assert.assertNotNull(accountUtil)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testGetUserName() {
+        Assert.assertEquals(AccountUtil.getUserName(context), "test@example.com")
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testGetUserNameWithException() {
+        val context =
+            FakeContextWrapperWithException(RuntimeEnvironment.application.applicationContext)
+        Assert.assertEquals(AccountUtil.getUserName(context), null)
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testAccount() {
+        Assert.assertEquals(AccountUtil.account(context)?.name, "test@example.com")
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun testAccountWithException() {
+        val context =
+            FakeContextWrapperWithException(RuntimeEnvironment.application.applicationContext)
+        Assert.assertEquals(AccountUtil.account(context), null)
+    }
+}